It's really simple to use imgur, and you can upload pics without an account. Go to imgur.com, click the upload button (the cloud with the arrow in the top left), choose a pic from your computer, and click upload image. When it finishes, it will take you to a page where you can copy the direct link to the image. Come back here, click the img button and paste that link in. OR you can copy the BBCode link that imgur provides and just paste that directly into your comment box here.